pearson.fr

Delegation · The nameservers at the parent and in the zone should be the same. Only at the parent: ns1.pearson.com, ns2.pearson.com; only in the zone: dns-amer-2.ptns.pearson.com, dns-apac-1.ptns.pearson.com, dns-emea-1.ptns.pearson.com. dns-amer-2.ptns.pearson.com, dns-apac-1.ptns.pearson.com, dns-emea-1.ptns.pearson.com, ns1.pearson.com, ns2.pearson.com report NS dns-amer-2.ptns.pearson.com dns-apac-1.ptns.pearson.com dns-emea-1.ptns.pearson.com.

Delegation · None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.

SOA · refresh 15m is outside 20m–1d; retry 15m should be shorter than refresh 15m. Current values: refresh 15m, retry 15m, expire 30d, negative TTL 15m.

DNSSEC · The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.

DNSSEC · DNSSEC is not enabled for this domain. Consider enabling DNSSEC to protect against DNS spoofing attacks.

MX · Only one MX record found. For better email reliability, consider adding at least one backup MX server.

TLS · MTA-STS is not configured, so other mail servers fall back to unencrypted delivery when TLS fails or is stripped by an attacker. Publish a _mta-sts TXT record and a policy at https://mta-sts.<domain>/.well-known/mta-sts.txt.